|Release date||20 September 2004 (Update)|
Dense forests are thick patches of entangled trees which serve as agility obstacles in the forest of Isafdar, in the elven lands of Tirannwn. They can be passed through with 56 Agility, though they require the player to be a certain way through the Regicide quest, in which the player encounters an Elf Tracker working for Lord Iorwerth, who teaches them how to navigate the dense forest. They are the most common kind of obstacle in Isafdar, and cannot be failed by a player, unlike stick traps, leaf traps and tripwire, all of which can be failed, resulting in a substantial loss of life points and, in the case of the tripwire, a poisoning. Interestingly, when entering the Tyras Camp in southern Tirannwn (entered during Regicide to kill the level 110 Tyras guard boss monster), players require 56 Agility to pass through the forest patch at the entrance, but on the way out of the camp, the Agility level is not necessary.
- When there are several people passing through dense forests at a time, the animation of the player ducking under and squeezing between the trees is not played, and avatars simply appear on the other side of the section.
- When using a Summer Pie to get through, a glitch may occur where you are still able to negotiate the dense forest even after it wears off and your agility level is below 56.